1    /* 
2     * This interpreter is intended to paint different colored dots in a window. 
3     * 
4     * The commands that the interpreter can recognize and respond to are: 
5     * -BLUE: paint a blue dot 
6     * -RED: paint a red dot 
7     * -HElP: show a list of the commands in a dialog message box 
8     * -EXIT: terminate the program 
9     */
10   
11   package interpreters;
12   
13   import painter.SPainter;
14   import shapes.SCircle;
15   
16   import javax.swing.*;
17   import java.awt.*;
18   
19   public class Interpreters1 {
20       private void interpreter() {
21           //CREATE OBJECTS TO THINK WITH
22           SPainter miro = new SPainter("Dot Thing", 400, 400);
23           miro.setScreenLocation(0, 0);
24           SCircle dot = new SCircle(180);
25   
26           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET
27           while (true) {
28               String command = JOptionPane.showInputDialog(null, "Command?");
29               if (command == null) {
30                   command = "exit";
31               } //user clicked on Cancel
32               if (command.equalsIgnoreCase("blue")) {
33                   miro.setColor(Color.BLUE);
34                   miro.paint(dot);
35               } else if (command.equalsIgnoreCase("red")) {
36                   miro.setColor(Color.RED);
37                   miro.paint(dot);
38               } else if (command.equalsIgnoreCase("help")) {
39                   JOptionPane.showMessageDialog(null, "Valid commands are:"
40                           + "RED | BLUE | HELP | EXIT ");
41               } else if (command.equalsIgnoreCase("exit")) {
42                   miro.end();
43                   System.out.println("Thank you for viewing the dots ...");
44                   break;
45               } else {
46                   JOptionPane.showMessageDialog(null, "Unrecognizable command: "
47                           + command.toUpperCase());
48               }
49           }
50       }
51           //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
52   
53           public Interpreters1() {
54                   interpreter();
55           }
56   
57           public static void main(String[] args) {
58               SwingUtilities.invokeLater(new Runnable() {
59                   ;
60                   public void run () {
61                       new Interpreters1();
62                   }
63               });
64           }
65       }
66